Home / 87,048,245.19-120,126,577.05-47,889,181.56

Finding the Fourth Proportional to 87,048,245.19, 120,126,577.05 and 47,889,181.56

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Solution

The fourth proportional to 87,048,245.19, 120,126,577.05 and 47,889,181.56 is: 66,087,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,048,245.19 : 120,126,577.05 = 47,889,181.56 : x
  2. Step 2: Convert to fraction form
    87,048,245.19/120,126,577.05 = 47,889,181.56/x
  3. Step 3: Cross multiply
    87,048,245.19x = 120,126,577.05 × 47,889,181.56
  4. Step 4: Simplify right side
    87,048,245.19x = 5,752,763,458,528,779
  5. Step 5: Solve for x
    x = 5,752,763,458,528,779/87,048,245.19
  6. Step 6: Final answer
    x = 66,087,069.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.